5.2 Indoor Unit Wiring
Power Supply
The wire diameter and continuous length is under the
condition that the voltage vibration is within 2%. If the
continuous length is exceed showing value, choose the
wire diameter follow relevant regulation.
NOTE
Indoor Power Supply
Circuit Breaker
Manual swtich
Wire Distribution Box
Indoor Unit
CAUTION
1. Refrigerant piping system, indoor unit-indoor unit connection
signal wires and indoor unit-outdoor unit connection singal wire
are in the same system.
2. When power cord is parallel with signal wire, please put them
into separate wire distribution pipes, and leave a proper distance.
(Reference distance: It is 300mm when current capacity of
power cord is less than 10A, or 500mm when 50A).
Please use shield wire as indoor unit/outdoor unit signal wire.
Indoor/Outdoor unit signal wire wiring
Outdoor Unit
Close end of the connection shielded wire
Indoor/Outdoor
Unit Signal Wire
(open)
Table 5-2
Fig. 5-5
Wrong connection may cause malfunction .
Wiring Connection
Seal the wiring connection with the insulation material , or the
condensing dew will be caused.
The air-conditioners can connect with Central Control Monitor
(CCM). Before operation, please wiring correctly and set system
address and network address of indoor units
NOTE
Single phase indoor unit
Wire controller
The reserved wire control
function is indicated in broken
line table, users can purchase
the wire controller when
necessary.
in broken line table, users can purchase the wire
controller when necessary
To wire controller
Display
board
WHITE
BLUE
BLACK
P Q
X Y E
YELLOW
GRA
Y
To Outdoor
COMM.BUS
To Central Control
Monitor (CCM)
COMM. BUS
Power Supply
Y/G
N
L
Please use three-core shielded wire, and
connect the shielded layer to Grounding
XT1
XT3
Fig. 5-4
BLACK
E
Indoor unit power supply wiring
Circuit Breaker (A)
16
3x2.5
Indoor Unit
Power
Specifications
220-240V~ 50Hz
Indoor Unit /Outdoor Unit
Signal Wire (mm
2
)
(Weak electric signal)
Indoor/Outdoor unit signal wire is low voltage circuit. Do not
let it touch the high voltage power wire and put it to gather
with power cord in the same wire distribution pipe.
1. Signal wire is three-core, polarized wire. Use three-core shield
wire to prevent interference. The grounding method now is
grounding the closed end of the shield wire and opening
(insulating) at the end. Shield is to be grounded.
2. The control between outdoor unit and indoor unit is BUS type.
Addresses is set on field during the installation.
CAUTION
Three-core shielded wire
3x0.75
Capicity(kW)
1.8~16
Fig. 5-6
Power Wiring
Size(mm²)
CAUTION
The length of signal wire must not exceed 1200m. A communication
error may result when the signal wiring exceeds these
limitations.
Installation manual
13
Mini MVD V6M
